On Mon, Apr 16, 2018 at 10:41:32PM +0200, Aurelien Jarno wrote:
> The RISC-V kernel doesn't define SA_RESTORER, hence the kernel version
> of struct sigaction doesn't have the sa_restorer field. The default
> kernel_sigaction.h therefore can't be used.
> 
> This patch adds a RISC-V specific version of kernel_sigaction.h to fix
> the issue. This fixes for example the libnih testsuite.
> 
> Note that this patch is not needed in master as the bug has been fixed
> by commit b4a5d26d8835 ("linux: Consolidate sigaction implementation").
> ---
>  ChangeLog                                        | 5 +++++
>  sysdeps/unix/sysv/linux/riscv/kernel_sigaction.h | 7 +++++++
>  2 files changed, 12 insertions(+)
>  create mode 100644 sysdeps/unix/sysv/linux/riscv/kernel_sigaction.h
> 
> diff --git a/ChangeLog b/ChangeLog
> index 536fcf1c4f..f365475a47 100644
> --- a/ChangeLog
> +++ b/ChangeLog
> @@ -1,3 +1,8 @@
> +2018-04-16  Aurelien Jarno  <aurelien@aurel32.net>
> +
> +	[BZ #23069]
> +	* sysdeps/unix/sysv/linux/riscv/kernel_sigaction.h: New file.
> +
>  2018-03-29  Florian Weimer  <fweimer@redhat.com>
>  
>  	* sysdeps/unix/sysv/linux/i386/tst-bz21269.c (do_test): Also
> diff --git a/sysdeps/unix/sysv/linux/riscv/kernel_sigaction.h b/sysdeps/unix/sysv/linux/riscv/kernel_sigaction.h
> new file mode 100644
> index 0000000000..2a62bcc5bc
> --- /dev/null
> +++ b/sysdeps/unix/sysv/linux/riscv/kernel_sigaction.h
> @@ -0,0 +1,7 @@
> +/* This is the sigaction structure from the RISC-V Linux 4.15 kernel.  */
> +
> +struct kernel_sigaction {
> +	__sighandler_t k_sa_handler;
> +	unsigned long sa_flags;
> +	sigset_t sa_mask;
> +};

I think this is OK given that b4a5d26d8835 cannot be easily backported to 2.27.


-- 
ldv